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參數(shù)資料
| 型號： | LS7560N |
| 廠商： | LSI CORP |
| 元件分類： | 運動控制電子 |
| 英文描述： | BRUSHLESS DC MOTOR CONTROLLER |
| 中文描述： | BRUSHLESS DC MOTOR CONTROLLER, 0.075 A, DIP28 |
| 封裝： | DIP-28 |
| 文件頁數(shù)： | 5/8頁 |
| 文件大?。?/td> | 129K |
| 代理商： | LS7560N |
FIGURE 5
. In this configuration, the PWM output
duty cycle to the motor drivers is directly pro-
portional to the DC voltage applied to Pin 6, since
Pins 7 and 8 are tied together.
FIGURE 3.
The closed loop motor control
operation is achieved by ap-
plying the Tachometer Output at
Pin 5 into the negative terminal
of the Error Amplifier (Pin 7)
through an R1-C1-R2 integrating
network. The R1-C1 network is
configured as a feedback circuit
around the amplifier. Since the
Tachometer Output has a fixed
positive pulse width, the average
value of the pulse train is directly
proportional to the motor speed.
The desired speed is selected
by applying a voltage at the pos-
itive input (Pin 6) of the Error
Amplifier. The resultant output
voltage of the Error Amplifier is
applied to an internal
Compar-
ator along with a ramp waveform
generated by the RC Network at
Pin 9. The PWM signal at the
Comparator output is used to
drive outputs 1 thru 6 and com-
plete the closed loop. For this
configuration, Pin 20, the Top
Driver Polarity Select must be
tied to Ground.
FIGURE 4
. This three phase half wave motor controller has no top power tran-
sistor to disconnect the windings from the power supply when the BRAKE is ap-
plied. Instead, a switching transistor is used which will permit braking for a time
determined by the RC time constant. When the capacitor discharges past the
ENABLE input switching point, the outputs will be turned off.
**
Switch used to connect the
error amplifier out and (-) input
together when Brake Select input
is low and Brake is applied. The
speed setting selected by R3 also
sets the PWM rate during braking.
OUT6
OUT5
OUT4
12
13
14
10
11
V
M
ENABLE
BRAKE
OVERCURRENT
23
2
R
C
V
R
FIGURE 4. THREE-PHASE HALF-WAVE MOTOR CONTROLLER
19
(+)
(-)
SENSE
V
R
7
8
6
19
9
V
R
OSC
ERROR AMP(-)
ERROR AMP
OUT
ERROR AMP(+)
R
T
C
T
FIGURE 5. OPEN LOOP CONTROLLER
7560N-030906-5
24
25
26
27
21
20
22
15
16
17
14
13
12
10
11
5
7
8
6
9
4
3
28
18
19
2
1
23
ROTOR
OUT1
OUT2
OUT3
OUT4
OUT5
OUT6
S1
S2
S3
F/R
PWM CNTRL
TOP DRV
POL SEL
BRAKE
SEL
BRAKE
OVERCURRENT
SENSE
SEQ SEL
TACH OUT
ENABLE
ERROR
AMP
OSC
RC
V
R
V
SS
V
DD
FAULT
V
M
V
M
FIGURE 3. THREE PHASE CLOSED LOOP FULL WAVE MOTOR CONTROLLER
C
S
V
R
C
T
R
T
10k
R2
100k
C1
0.1μF
*
*
*
R1
TYPICAL
VALUES
1M
*
V
R
S1
S2
S3
(-)
OUT
(+)
S1
S2
S3
R
S
( + )
( -)
R3
**
R
F
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相關代理商/技術參數(shù) |
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| LS7560-S | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Controller Miscellaneous - Datasheet Reference |
| LS7560-TS | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Controller Miscellaneous - Datasheet Reference |
| LS7561 | 制造商:LSI 制造商全稱:LSI 功能描述:BRUSHLESS DC MOTOR CONTROLLER |
| LS7561N | 制造商:LSI 制造商全稱:LSI 功能描述:BRUSHLESS DC MOTOR CONTROLLER |
| LS7561-S | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Controller Miscellaneous - Datasheet Reference |
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